Method for double creeling feed yarn

ABSTRACT

This invention resides in a method for double creeling feed yarn by drawing the tail end yarn of the emptying package and the free end yarn of a full package and establishing a connection between the drawn tail end yarn and the drawn feed end yarn at a location in the drawn portions of said yarns. In an embodiment synthetic yarn ends are drawn, as by hand, to reduce the diameter of the knot to be made. The drawing of the yarn ends increases the strength of the yarn in said ends which have been drawn.

United States Patent 1191 UNITED STATES PATENTS 4/1962 Messa 289/17 X Womer [4 Dec..31, 1974 METHOD FOR DOUBLE CREELING FEED 3,611,694 10/1971 Jaeggli 57/34 R YARN [75] Inventor: Walter D. Womer, Greenville, SC. Prim ry Examiner-Harvey C. Hornsby [73] Assignee: Phillips Petroleum Company,

Bartlesv1lle, Okla. 57] ABSTRACT 22 Pl d: Au 29,1972 1 I e g This invention resides in a method for double creeling PP N04 234,461 feed yarn by drawing the tail end yarn of the emptying package and the free end yarn of a full package and 52 us. 01 57/156, 19/15'/ 28/47 establishing a between the draw" end 264/258 yarn and the drawn feed end yarn at a location in the 51 1m. (:1 062 3/02 draw" Said Yams- [58] Field of Search 57/156, 158; 19/157; In an embodiment synthetic yarn ends are drawn, as 28/49, 47; 242/35.6 R, 37 A; 264/258; by hand, to reduce the diameter of the knot to be 289/l.5, l7 made. The drawing of the yarn ends increases the strength of the yarn in said ends which have been [56] References Cited drawn.

, 6 Claims, 3 Drawing Figures METHOD FOR DOUBLE CREELING FEED YARN It is desirable to provide a method for double creeling feed yarns whereby the operation of draw twisting, draw winding, draw texturizing, and/or other similar machines associated with the yarns is not interrupted during changeover from an emptying yarn package feeding yarn to the associated machines and a full yarn package, and the connection of the yarn ends is of reduced dimensions and sometimes of increased strength.

This invention therefore resides in a method for double creeling feed yarn by drawing the tail end yarn of the emptying package and the free end yarn of a full package and establishing a connection between the drawn tail end yarn and the drawn feed end yarn at a location in the drawn portion of said yarns.

In textile operations it is often desirable to continuously supply yarn to associated apparatus for further processing of the yarns or for other operations as known in the art. The yarn source fed to these machines is often wound onto a yarn package and unwound therefrom for feed to the machines. Upon emptying of a first package, for example, it is then desirable to have a second package attached to the tail end yarn of the first package in order that the supply of yarn is continuous and the associated machinery operation does not have to be interrupted. Even a slowing down of the machine will represent waste of time, labor, and equipment.

Heretofore, the connecting of the emptying yarn package to a full yarn package for continuous feeding of yarn, herein referred to by the term double creeling of feed yarn, was often accomplished by knotting the yarn ends together and altering the speed of the machinery until the knotted portion passed through the machinery. These heretofore utilized double creeling feed yarn methods often resulted in yarn hangups, yarn breakage, overheating of portions of yarn, and other wasteful events.

The drawings are diagrammatic views of this invention. FIG. 1 shows the tail end yarn and the free end yarn after both ends have been hand drawn, FIG. 2

shows the same yarn ends tied together in a loose con- Y nection, and FIG. 3 shows the two yarn ends after the knotted connection has been drawn tight.

Referring to FIGS. 1 and 2, in the method of this invention, the tail end yarn 2 of theemptying package and the free end yarn 4 of the full package are drawn and thereafter a connection between the drawn tail end yarn and the drawn free end yarn is made at a location in the drawn portions of said yarns.

The drawing is preferably made by hand and the connection is preferably by a fishermans knot. As is known in the art, a fishermans knot 6 is formed by forming an overhand knot on one of the yarn ends, passing the other yarn end through the formed loop of the overhand knot, forming an overhand knot in the other yarn end with the loop encircling said one yarn, and pulling the two overhand knots tight and jamming said overhead knots together as shown in FIG. 3.

It is also preferred that the drawn portions 8 and 10 of the tail end yarn 2 and the free end yarn 4 are drawn in the range of about 1.5 to 1 to about 5 to 1 times their undrawn lengths and that the drawn portions of said yarns have a diameter in the range of about 40 percent to about 90 percent their undrawn diameters. Thus the diameter of the knot will be little if any greater than that of the undrawn yarn and the knot will pass through the yarn processing guides without hanging up or getting caught. No reduction in yarn speed is thus required because of the knot.

At drawings greater than as set forth above, the yarns can be broken or be of undesirable quality and at drawings less than 5 set forth above, the yarn connections can be sufficiently bulky to cause hangups such as in texturizing jets or false twist spindles. undesirable quality, and cause other undesirable events and properties. In many synthetic yarns, drawing in the ranges as set forth above will also cause the yarn to be strengthened in the drawn portion, thereby improving the quality of the established yarn ends connection.

' Other modifications and alterations of this invention will become apparent to those skilled in the art from the foregoing discussion and examples, and it should be understood that this invention is not to be unduly limited thereto.

What is claimed is: l. A method for double creeling feed yarn, comprisdrawing the tail end yarn of an emptying package and the free end yarn of a full package; and then establishing a connection between the drawn tail end yarn and the drawn free end yarn at a location in the drawn portions of said yarns said yarn being drawn to have a diameter in the range of about 40 percent to about percentof its undrawn diameter prior to establishing said connection so that the connection will pass through yarn processing guides without being hung up or caught in said guides.

2. A method, as set forth in claim 1, wherein the connection is established by knotting together the drawn tail end yarn and the drawn free end yarn.

3. A method, as set forth in claim 2, wherein the knot is a fishermans knot.

4. A method, as set forth in claim 1, wherein the drawn portions of the tail end yarn and the free end yarn are drawn in the range of about 1.5 to l to about 5 to 1 their undrawn lengths.

5. A method, as set forth in claim 1, wherein said yarns are drawn by hand.

6. A method for double creeling feed yarn, comprismg:

drawing the tail end yarn of an emptying package and the free end yarn of a full package; and then establishing a connection between the drawn tail end yarn and the drawn free end yarn at a location in the drawn portions of said yarns, said yarn is a synthetic yarn, the free end yarn and the tail end yarn are drawn in the range of from about 1.5 to l to about 5 to l of their undrawn lengths and wherein the drawing substantially reduces the diameter of the yarn ends thus permitting the tying of a knot which will be little if any greater than the diameter of the undrawn yarn so that the knot will pass through the yarn processing guides in which the yarn is to pass without being hung up or caught and without need for reduction of speed and wherein the drawn yarn ends and consequently the knot which is tied have a strength substantially increased over that which would obtain without said drawing. 

1. A method for double creeling feed yarn, comprising: drawing the tail end yarn of an emptying package and the free end yarn of a full package; and then establishing a connection between the drawn tail end yarn and the drawn free end yarn at a location in the drawn portions of said yarns said yarn being drawn to have a diameter in the range of about 40 percent to about 90 percent of its undrawn diameter prior to establishing said connection so that the connection will pass through yarn processing guides without being hung up or caught in said guides.
 2. A method, as set forth in claim 1, wherein the connection is established by knotting together the drawn tail end yarn and the drawn free end yarn.
 3. A method, as set forth in claim 2, wherein the knot is a fisherman''s knot.
 4. A method, as set forth in claim 1, wherein the drawn portions of the tail end yarn and the free end yarn are drawn in the range of about 1.5 to 1 to about 5 to 1 their undrawn lengths.
 5. A method, as set forth in claim 1, wherein said yarns are drawn by hand.
 6. A method for double creeling feed yarn, comprising: drawing the tail end yarn of an emptying package and the free end yarn of a full package; and then establishing a connection between the drawn tail end yarn and the drawn free end yarn at a location in the drawn portions of said yarns, said yarn is a synthetic yarn, the free end yarn and the tail end yarn are drawn in the range of from about 1.5 to 1 to about 5 to 1 of their undrawn lengths and wherein the drawing substantially reduces the diameter of the yarn ends thus permitting the tying of a knot which will be little if any greater than the diameter of the undrawn yarn so that the knot will pass through the yarn processing guides in which the yarn is to pass without being hung up or caught and without need for reduction of speed and wherein the drawn yarn ends and consequently the knot which is tied have a strength substantially increased over that which would obtain without said drawing. 